Hardy annuals: sowing in spring

Easily grown from seed, a vast choice of hardy annuals is available to offer long-lasting flowers during the warmer months. These fast-growing plants provide an easy and cost-effective way to give naturalistic planting, plug gaps and fill the border with a summer full of colour.

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Seed: sowing hardy annuals in spring

Quick facts

Timing Spring, late March to May
Difficulty Easy to moderate

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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.